61. Black Widow Spiders black widow spiders hang upside down from irregular webs one foot in diameter. How to control black widow spiders Inspect at night when spiders are active. http://www.west-ext.com/black_widow_spider.html

62. Black Widow Spider Report (WP) This is when most bites on humans. from black widow spiders. http//www.ces.ncsu.edu/depts/ent/notes/Urban/spiders/blackwid.htm. might be black widow spiders. http://www.marceline.k12.mo.us/~portfolio/1998/louis/black widow spider report .

BLACK WIDOW SPIDER REPORT Latrodectus mactans The Black Widow spider is a member of the arachnid family. The Black Widow is known for its poisonous venom but also for its red hourglass marking which is found on the abdomen of the spider. The male spiders are smaller than the females and a cream color with white markings instead of red. The Black Widow spider delivers its venom the same way every other arachnid does. Through fang-like appendages which are hollow in the middle. The poison of the spider acts upon a persons nervous system. The sympotoms are very serious and painful. The person could experience extreme pain in the abdomen area,legs, high cerebrospinal fluid pressure, nausea, muscular spasms, and even respiratory paralysis. Fatal bites are very rare. In El Paso Black Widow spider webs aren't an odd thing to see even though they usually prey on insects. Even lizards are caught and ate by the deadly Black Widow. Black Widows are more deadly and poisonous than the Tarantula spiders of the desert. http://www.utep.edu/epbionet/cheklist/arthropo/a104blwi.htm

63. USATODAY.com - Less Pesticide Means More Bugs For Food Buyers Sure, it s scary to find poisonous black widow spiders on storebought grapes. But food safety specialists and growers say it s http://www.usatoday.com/news/nation/2003-11-26-bugs_x.htm

Cars Jobs Franchises Business Opportunities ... Weather Politics Politics home Politics briefs Latest polls Political calendar Washington Washington home Washington briefs Government Guide Law Center Health Health home Medical resources Health information Editorial/Opinion Ed/Op home Columnists Cartoons More News Top news briefs Nation briefs World briefs States ... Talk Today Posted 11/26/2003 4:01 PM Today's Top News Stories NYSE, Nasdaq to close Friday to honor Reagan Reagan family begins former president's last journey Iraqi prime minister says militias will disband South Korea: U.S. wants to pull out one-third of troops ... Add USATODAY.com headlines to your Web site E-Mail Newsletters Sign up to receive our free Daily Briefing e-newsletter and get the top news of the day in your inbox. E-mail: Select one: HTML Text Breaking News E-Mail Alerts Get breaking news in your inbox as it happens Less pesticide means more bugs for food buyers Grape growers and grocers say their efforts to use fewer or softer chemicals are to blame for more bugs reaching consumers. "As a result of the growers' efforts to reduce the use of pesticides in the industry, the possibility of finding an insect or spider exists," Shaw's supermarkets said in a statement.

64. Costa Rica’s Black Widow Spiders Costa Rica’s black widow spiders. These spiders are well represented in all the continents and there are 30 black widow species around the world. http://www.inbio.ac.cr/en/sabias/sabias01.htm

65. Black Widow, MU Extension, University Of Missouri-Columbia The black widow, Latrodectus mactans, is one of two poisonous spiders found in Missouri. Black widow. Female black widow spiders are shy and nocturnal. http://muextension.missouri.edu/explore/wildthing/blackwidow.htm

Campus extension Counties and regions University of Missouri-Columbia A to Z - A - - B - - C - - D - - E - - F - - G - - H - - I - - J - - K - - L - - M - - N - - O - - P - - Q - - R - - S - - T - - U - - V - - W - - X - - Y - - Z - All words Any word EDUCATION Center for Distance and Independent Study Continuing Education Lifespan Learning ... Public policy The black widow, Latrodectus mactans, is one of two poisonous spiders found in Missouri. Black widow The female black widow is jet black with a red hourglass-shaped marking on the underside of the abdomen. Some specimens have various other small red spots, particularly on the top surface of the abdomen. The abdomen is generally much larger than the cephalothorax. Males are much smaller than females and usually have yellow and red bands and spots over the body. Immature black widows have similar markings. Only the females are venomous. The black widow lives in undisturbed locations under trash, litter, boards and rocks. Little-used buildings may be infested as well as crawl spaces, cellars and basements. These spiders construct an irregular web in spaces between objects. They typically do not leave the web. Female black widow spiders are shy and nocturnal. Bites usually occur when humans come into direct contact with the web or when the spider is unknowingly pinned against their skin. The poison of the black widow spider affects nervous system function. The bite causes severe pain in the vicinity of the bite, accompanied later by dizziness, nausea, blurred vision and breathing difficulty. A physician should be contacted immediately following a suspected bite. When this happens, fatalities are rare and recovery is usually quick and complete.

66. Wednesday, November 1, 2000 Iwakuni on the lookout for black widow spiders We don’t know exactly what specific variety of black widow spiders they are, Masui explained. http://www.pstripes.com/ed110100g.html

67. Marly Cain's Science Academy - Black Widow Spider Videos Visit Marly Cain s Nature Science Academy Home Page, Black Widow Spider Normal and Timelapse Videos The baby black widow spiders emerge from the egg sac. http://www.rmcain.com/mcama/scicad/labs/blackwidowvids.mv

Black Widow Spider Normal and Time-lapse Videos The Black Widow Spider tending its web and egg sac. The Black Widow Spider attacking a beetle caught in her web. She searchs the beetle to find an opening in the beetle's armor where she can sink her fangs and inject her venom. Once she injects her venom, she starts wrapping the beetle in strands of web silk. Black Widow Spider venom is very potent! As you can see, even though the beetle is considerably larger than the spider, the beetle starts showing the effects of the venom just a few seconds after being bitten. Now that the beetle is bound by web silk and has stopped damaging her web, the Black Widow Spider repairs and fortifies her web so it will withstand the extra weight of the beetle as she eats it. [Time-lapse Video] The Black Widow Spider starts to enjoy her meal now. She searches to find suitable openings in the beetle's armor that will allow her to suck out the beetle's digested organs. [Time-lapse Video] The baby black widow spiders emerge from the egg sac. Notice how the mother black widow spider hides away from the babies, probably to keep from being eaten by them. [Time-lapse Video] A day or two after her big beetle meal, the black widow spider spins another egg sac and lays more eggs. Watch closely! When she completes about half of her egg sac, she begins depositing her eggs in it. Notice that she accomplishes all of this while she is hanging upside down.

68. NEJM -- Black Widow Spider Black Widow Spider. However, in my area, I usually encounter black widow spiders from the dorsum, not the ventrum, so the hourglass marking is not visible. http://content.nejm.org/cgi/content/short/337/17/1248

HOME SEARCH CURRENT ISSUE PAST ISSUES ... HELP Please sign in for full text and personal services Previous Volume 337:1248 October 23, 1997 Number 17 Next Black Widow Spider Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings. Full Text Add to Personal Archive Add to Citation Manager E-mail When Cited ... PubMed Citation To the Editor: Thanks to Dr. Stack (June 5 issue) for the stunning photograph and description of the black widow spider. However, in my area, I usually encounter black widow spiders from the dorsum, not the ventrum, so the hourglass marking is not visible. The dorsum is also characteristic. Black widow spiders have a shiny, fat abdomen that looks like a big black grape, with the longest legs extending out in front. For those foolish enough to retrieve wood from the woodpile in the dark, the unmistakable crinkling, crackling sound of a black widow spider's web breaking is an Full Text of this Article References HOME SEARCH CURRENT ISSUE PAST ISSUES ... HELP Comments and questions? Please contact us The New England Journal of Medicine is owned, published, and

69. Mail Page #19 - Grasshoppers And Black Widow Spiders - United Exterminating Comp Grasshoppers and black widow spiders. mail19.html. Sounds like paradise to me . We also seem to have quite a few black widow spiders around. http://www.unexco.com/mail/mail19.html

UnExCo Home Main Mail Page Message Board Grasshoppers and Black Widow Spiders mail19.html Sounds like paradise to me.... We moved into our home in October, we live on ten acres out of an original 110 acre tract of land that has never been developed. Only used to graze cattle. Recently we have been overtaken by grasshoppers, they are everwhere! I realize that living in the country it is impossible to get rid of them but is there any thing I can do to keep them from eating my rose bushes, hanging plants and small trees? We also seem to have quite a few black widow spiders around. We are in the process of removing brush and rock piles and clearing around our house to remove their habitat. Is there anything else that we can do now to get rid of them? I would greatly appreciate any help or advice that you have to offer. Thanks, Bonnie And my reply.... Hello, Bonnie: Sounds like you're out in the boonies! The grasshoppers (depending on what kind) are one of the joys of the boonies and are probably cyclical - meaning that some years are worse than other years. Hopefully this is a bad year. There probably isn't too much you can do about it, unfortunately. There is no "chemical" defense I know of (that won't hurt the roses) if you can screen them (a physical barrier) it might be the best way. When you get that many grasshoppers, they don't care what chemicals you put on the plants. Black widow spiders are secretive animals - so cleaning up the area would be the most efficient. They LOVE rock piles - we find them around here in the rock beds of railroad tracks. You're doing what you can, and they will gradually get to be less. Don't worry too much about them - their reputation is bad, but they're really not as bad as you've heard. Black widow spiders are so shy that very few people are bitten by them - and they're not as poisonous as you've probably heard.

70. Spiders They are the black widow and the brown recluse. Both spiders should not behandled by the homeowner. black widow spiders are usually not aggressive. http://www.acenet.auburn.edu/department/ipm/T-6.htm

71. Effective Control Of Household Spiders - Introduction Identify different types of spiders such as the black widow or wolf spider and learn how to control them in the home with chemical pesticides and other means. From the Pest Management Regulatory Agency in Canada. http://www.house-spider.ca/

Effective Control of Household Spiders Home Identification Prevention Physical Control ... Français Introduction Spiders commonly found in Canadian homes include house spiders, wolf spiders, cellar spiders, fishing spiders and, much more infrequently, black widow spiders. Spiders are usually found in corners of rooms, closets, boxes, dark crevices, basements, garages, and gardens. Spiders are excellent pest controllers. Wolf spiders are especially beneficial to farmers and gardeners because they prey on common crop pests such as cottonworms, gypsy moths and pea aphids. Spiders do not transmit any diseases. Although nearly all spiders have venom glands, they rarely bite humans and only a few species, such as the black widow spider, can have a dangerously venomous bite. Important Notices This website has been published by the Pest Management Regulatory Agency to provide homeowners and consumers with a relevant and useful resource regarding household pest management. It is intended as an informational guide only.

72. Spiders Of Medical Importance (006) (267) University of Nebraska Cooperative Extension in Lancaster County factsheet and audio on local spiders of medical importance (black widow, brown recluse, sac spider, parson spider). http://www.ianr.unl.edu/ianr/lanco/enviro/pest/factsheets/006-94.htm

Educational Resource Guide #6 Spiders of Medical Importance by Barb Ogg, Ph.D., Extension Educator "Little Miss Muffet sat on her tuffet, eating her curds and whey; along came a spider, and sat down beside her; and frightened Miss Muffet away." "There was an old lady who swallowed a spider that wiggled and jiggled and tickled inside her. She swallowed the spider to catch the fly. I don't know why she swallowed the fly. Perhaps she'll die." "'Step into my parlor,'" said the spider to the fly." With rhymes like these, it is no wonder that many people view spiders with apprehension. And, the movie, "Arachnophobia," did not do much to dispel fears about these eight-legged creatures. There are about 2,000 kinds of spiders in the United States. Of these, only a few species are considered to have bites that are of medical importance. Spiders are very shy creatures. Most people get bitten because they are cleaning an area that has not been cleaned for a long time and they disturb a spider's web or nest. Spiders are often blamed for many more bites than they actually commit. In general, most spider bites will not harm most people except for slight discomfort for a limited time after being bitten. A few individuals may be hypersensitive to the bites of a particular species, but this allergic reaction won't be known until after the person gets bitten.

73. MissBlackWidow.com The Female black widow Spider. The black watch. The black widow spider (Latrodectus mactans) is one of the most common spiders around. An http://www.missblackwidow.com/blackwidows.html

Black Widows The information below is based on my own experience and that of "The Black Widow: Answers to Frequently Asked Questions" by James W. Cornett. The Female The Male If Bitten Locations ... True Love in Tragedy The Female Black Widow Spider Click on the above image to see the anatomy of the Black Widow spider. The Black Widow spider will eliminate nearly 2000 insects during her life span. Learn to identify her markings and appreciate her efforts to eliminate fleas, ticks, ants and other unwanted insects around your home. If left alone, she will remain in one location, only to come out after you've gone inside. She's not only beautiful but bewitching to watch. The Black Widow spider (Latrodectus mactans) is one of the most common spiders around. An adult female is black with the infamous red hour glass design on her belly. The red hour glass serves to warn her enemies of her toxicity. The toxicity can very depending on the time of year. A venom sample in the fall is 10X greater than that of a sample taken in the spring. The venom of a female is made up of 7 proteins and 3 non proteins. Drop for drop, the venom of the female Black Widow is 15X more poisonous than that of the bite of a typical rattle snake. Her web is made of a sticky silk. So strong in fact, it has more than ten times the tensile strength of steel. Her size can reach as long as 2 inches with her legs extended and her life span, two - three years.

74. EMedicine - Spider Envenomations, Widow : Article By Sean P Bush, MD, FACEP Other widow spiders are generally black but may have red spots, such as Latrodectus mactans tredecimguttatus, or a dorsal red stripe, such as the redback spider http://www.emedicine.com/EMERG/topic546.htm

(advertisement) Home Specialties CME PDA ... Patient Education Articles Images CME Patient Education Advanced Search Link to this site Back to: eMedicine Specialties Emergency Medicine Environmental Spider Envenomations, Widow Last Updated: June 30, 2003 Rate this Article Email to a Colleague Synonyms and related keywords: Latrodectus, black widow spider, Latrodectus mactans mactans, brown widow, Latrodectus geometricus, red-legged widow, Latrodectus bishopi, redback spider, Latrodectus hasselti, button spider, Latrodectus indistinctus, Latrodectus variolus, Latrodectus hesperus, Latrodectus mactans tredecimguttatus, Latrodectus pallidus AUTHOR INFORMATION Section 1 of 11 Author Information Introduction Clinical Differentials ... Bibliography Author: Sean P Bush, MD, FACEP , Associate Professor, Department of Emergency Medicine, Loma Linda University School of Medicine Sean P Bush, MD, FACEP, is a member of the following medical societies: American College of Emergency Physicians Society for Academic Emergency Medicine , and Wilderness Medical Society Editor(s): Robert Norris, MD

75. The Black Widow Spider...................................... The black widow Spider is the common name for several related longlegged, smooth-bodied spiders that live in areas ranging from the Tropics, most of the http://www.geocities.com/thesciencefiles/blackwidow/spider.html

Latrodectus mactans More than 35,000 species of spiders occur in the world. Of these, about 3,400 are found in North America. The Black Widow Spider is the common name for several related long-legged, smooth-bodied spiders that live in areas ranging from the Tropics, most of the United States, and as far north as Canada. The shiny black body and red hourglass shape on its abdomen are easily recognizable characteristics of the Black Widow female; the smaller males are a dull brown, and harmless. Black Widow females spin irregular webs in crevices and other dark, protected spots, especially in wood piles, under the eaves of homes, in cardboard boxes stored on porches, in outdoor toilets, meter boxes and other such sheltered areas. Three other species are also poisonous to humans: the brown widow, the red widow, and the northern widow spider. Their markings are somewhat different than the Black Widow. The male measures a tiny 1/8 inch long, and the female is only slightly larger, at 3/8 of an inch (just over a centimetre) in length. Bites in humans only occur from the larger female. Her venom is 15 times more potent than an equal weight of rattlesnake venom ... but her tiny fangs inject only a small amount. As a result, fatalities caused by bites are rare, but the bites do cause swelling, discomfort, nausea, and difficulty in breathing, and are only occasionally fatal. The venom, a neurotoxin, generally affects children more severely than adults. With healthy people, recovery is usually complete in 2 to 5 days. However, this spider is considered the most venomous spider in North America.

76. Black Widow Spider Pictures black widow Spider Pictures. black widow Spider (Latrodectus). Females are 12 in diameter Males much smaller. The female black widow http://www.surviveoutdoors.com/reference/spiders/black_widow.asp

77. Spiders Back to top. black widow Spider. Latrodectus mactans. Latrodectus variolus. A black widow spider bite often results in delayed pain at the wound site. http://www.conservation.state.mo.us/nathis/arthopo/mospider/kinds.htm

Spiders Missouri Tarantuala Filmy Dome Spider Yellow Garden Spider White Backed Garden Spider ... Violin or Brown Recluse Spider Missouri Tarantula Dugesiella Hentzi "Ordinary" Tarantulas, Family Theraphosidae This hairy species is Missouri's largest spider. Female tarantulas average approximately 50mm in length, the males 40mm. Body and legs are uniformly dark chocolate-brown, with reddish hairs on the carapace. The tarantula's large size and shaggy appearance is frightening to many people, leading them to believe it has a ferocious nature. It actually is a shy creature, quick to evade humans. Taranthulas are typically at home in areas seldom frequented by people. They appear to prefer dry, rocky glades, where they spend their days in silk-lined burrows in abandoned rodent or reptile tunnels or in other natural cavities. Like many hunting spiders, tarantulas are active at night, when they hunt for insects such as crickets. In late summer and fall, south Missourians often see these large arachnids crossing roads. This wandering phenomenon has been documented in male tarantulas in southern california, but it has not been studied in Missouri. Missouri distribution: the tarantula occurs typically in open, dry glades in south and central Missouri. The Missouri river presumably acts as a barrier to the spider's movement into northern Missouri.

78. Spider Bites - First Aid For Minor Emergencies Most spiders found in the United States are harmless, with the exception of the black widow and the brown recluse spiders (sometimes called the violin spider). http://www.umm.edu/non_trauma/spider.htm

First Aid Preventing Unintentional Injuries When to Call For Help Household Safety Checklist ... First Aid Site Index First Aid Spider Bites The danger of spider bites: Most spiders found in the United States are harmless, with the exception of the black widow and the brown recluse spiders (sometimes called the violin spider). Both of these spiders are found in warm climates. What is a brown recluse spider? The brown recluse spider, or violin spider, is about 1 inch long and has a violin shaped mark on its upper back. It is often found in warm, dry climates and prefers to stay in undisturbed areas such as basements, closets, and attics. It is not an aggressive spider, but will attack if trapped or held against the skin. One death in December, 2001 has been reported in the United States from a brown recluse bite. What are the symptoms of a brown recluse spider bite? Venom from the brown recluse spider usually causes local tissue damage. The following are the most common symptoms of a bite from a brown recluse spider bite. However, each individual may experience symptoms differently. Symptoms may include: burning, pain, itching, or redness at the site which is usually delayed and may develop within several hours or days of the bite

79. Black Widows black widows Adult and Baby. Photos by Jon Zawislak. black widow (Latrodectus mactans). Baby black widow. http://www.uark.edu/~dksander/photos/spiders/blkwidow.html

Black Widows Adult and Baby Photos by Jon Zawislak Black Widow (Latrodectus mactans) Baby Black Widow

80. AllRefer Health - Black Widow Spider - Insect Bites And Stings: Pictures & Image black widow Spider Insect Bites and Stings (Bedbug Bite, Bee Sting, Bites - Insects, Bees, and spiders, black widow Spider Bite, Brown Recluse Bite, Flea Bite http://health.allrefer.com/health/insect-bites-or-stings-black-widow-spider-1.ht

AllRefer Channels :: Yellow Pages Reference Health Home ... Contact Us Quick Jump Allergic Reactions Animal Bites Anterior Knee Pain ACL Injury Bleeding Broken Nose Burns Choking/Heimlich Maneuver CPR Dental Injuries Drug Abuse First Aid Ear Emergency Eye Emergency Fracture Frostbite Genital Injury Head Injury Heart Attack First Aid Heat Emergencies Insect bites or Stings Meniscus Tear Poisoning First Aid Sprains Sunburn First Aid Tick Bite Wounds 60+ More Injury Topics Alternative Medicine Health News Symptoms Guide Special Topics ... Medical Encyclopedia You are here : AllRefer.com Health Insect Bites and Stings : Black Widow Spider Insect Bites and Stings Alternate Names : Bedbug Bite, Bee Sting, Bites - Insects, Bees, and Spiders, Black Widow Spider Bite, Brown Recluse Bite, Flea Bite, Honey Bee or Hornet Sting, Lice Bites, Mite Bite, Scorpion Bite, Spider Bite, Wasp Sting, Yellow Jacket Sting Black Widow Spider The female black widow is easily recognized by her shiny black body and red hourglass marking underneath her round abdomen. Although black widows can be found in nearly every state they are most common in the southern areas of the United States. The black widow makes her home in wood piles, under eaves, and other undisturbed places. The bite of a black widow can be serious and require medical attention. Symptoms include pain radiating from the site of the bite, nausea, overall aching of the body, profuse sweating, and labored breathing. Previous Image Next Image Jump to another image Bedbug - Close-Up Black Widow Spider Body Louse Flea ... Insect, the Basic Features of Adults

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